Not from a ML/WL but have had this happen before when I was younger! My fuck buddy at the time sucked me til I came, showed it to me in her mouth and swallowed then winked and kept sucking! Was only soft for a bit and got hard again quickly and she kept sucking til I came again, she wanted to keep going to see if I could do a third but I wouldn’t stay hard after that…

I’m sure if you are able to physically do it, asking a WL to continue sucking after you cum shouldn’t be too hard..